.flex_column {
  flex-direction: column;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  box-orient: vertical;
}
body {
  top: 0;
  left: 0;
  position: fixed;
  width: 100%;
  height: 100%;
  -webkit-overflow-scrolling: touch;
  overflow-scrolling: touch;
  display: box;
  display: -webkit-box;
  display: -moz-box;
  display: -o-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flex;
  display: -o-flex;
  display: flex;
  flex-direction: column;
  -webkit-box-orient: vertical;
  -moz-box-orient: vertical;
  box-orient: vertical;
  font-size: 14px;
  overflow: hidden;
}
div,
ul,
li,
p,
ol {
  width: 100%;
}
.box1 {
  overflow: scroll;
  flex: 1;
  box-flex: 1;
  -webkit-flex: 1;
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -ms-flex: 1;
}
.topBar {
  height: 15em;
  background: red;
}
.listCtn .cell {
  height: 10rem;
  background: green;
  margin-bottom: 10px;
  font-size: 5rem;
}
.listCtn .vh100 {
  height: 100vh;
  background: yellow;
}
.box2 {
  height: 4rem;
  -webkit-overflow-scrolling: touch;
  overflow-scrolling: touch;
  display: box;
  display: -webkit-box;
  display: -moz-box;
  display: -o-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: -moz-flex;
  display: -ms-flex;
  display: -o-flex;
  display: flex;
  -webkit-align-content: space-between;
}
.box2 .part1 {
  width: 3rem;
  background: pink;
}
.box2 .part2 {
  width: 3rem;
  background: gold;
  height: 100%;
}
